Take our virtual tourExplore our Klaipeda waste-to-energy production plant. Ready? Let’s go.
Explore our Klaipeda waste-to-energy production plant. Ready? Let’s go.
Waste-to-energy
Modern. Efficient. Controlled operations
Waste-to-energy is a way to recover energy from residual waste that cannot be reused or recycled, helping to divert it from landfill while producing heat and electricity for local communities. It plays a supporting role in the waste hierarchy, after prevention, reuse and recycling.
Gren operates waste-to-energy CHP plants that combine waste treatment with heat and power production.
Transforming waste. Powering progress
In Kaunas and Klaipėda, Lithuania, our combined heat and power plants recover energy from non-hazardous municipal and industrial waste that cannot be recycled — supplying heat to city district heating companies and selling electricity via Nord Pool, instead of sending this waste to landfill.
Supporting the energy transition.
Waste-to-energy (energy recovery) is one part of the waste management hierarchy, applied to residual waste that cannot be prevented, reused or recycled. Rather than sending this waste to landfill, it is thermally treated to recover its remaining energy content.
In this process, waste undergoes controlled energy recovery: combustion in the furnace (at a minimum of 850°C) generates heat that produces steam. The steam drives systems that convert it into electricity and district heat, while flue gases pass through a multi-stage emission control system designed to keep pollutant levels significantly below the EU’s Best Available Techniques (BAT) emission levels for waste incineration, with continuous emissions monitoring in place.
By connecting waste-to-energy facilities to district heating networks, the recovered heat can serve homes and businesses directly, supporting local heat supply alongside other energy sources. In this way, waste that has no further use in the recycling chain is converted into a local energy source — while reducing the volume of waste sent to landfill.
Taking care of residual waste.
Waste-to-energy plays a hygienic role by treating residual waste that can’t be prevented or recycled, taking on remaining waste streams produced by businesses and communities.
By treating the residues created from sorting and recycling activities, waste-to-energy plants act as an outlet for material that cannot currently be recycled. This role may evolve over time as recycling rates increase.
Waste-to-energy also remains relevant as a sanitary service. In the past, waste was burned as a means of dealing with infectious diseases. Some sanitary items cannot be reused or recycled, and thermal treatment ensures they are dealt with safely.
Alongside this sanitary role, waste-to-energy facilities also recover the energy contained in residual waste, generating electricity, heating and cooling.
Take our virtual tour
Gren Klaipėda enhances Waste-to-Energy with Digital TwinGren Klaipėda has implemented a Digital Twin solution. This technology enables a mathematical model of the waste-to-energy plant, allowing advanced data analysis, process optimization, and real-time decision-making.
Gren Klaipėda has implemented a Digital Twin solution. This technology enables a mathematical model of the waste-to-energy plant, allowing advanced data analysis, process optimization, and real-time decision-making.
Waste-to-Energy plant in Acone, LatviaA modern Waste-to-Energy plant planned by Gren in Latvia, Acone, near Riga
A modern Waste-to-Energy plant planned by Gren in Latvia, Acone, near Riga
Bottom ash reuseEach year, the Gren Klaipėda plant processes non-recyclable waste to recover energy for homes and businesses. About 25% of this waste becomes bottom ash, which Gren prepares for reuse instead of disposal.
Each year, the Gren Klaipėda plant processes non-recyclable waste to recover energy for homes and businesses. About 25% of this waste becomes bottom ash, which Gren prepares for reuse instead of disposal.
